Magnetic Inductive Flowmeter DMH. Installation and Operating Instructions

Transcription

1 Magnetic Inductive Flowmeter DMH Installation and Operating Instructions

2 KOBOLD Messring GmbH DMH Installation and Operating Instructions Table of contents 1 SAFETY ADVISORIES Installation, commissioning, operating personnel Intended purpose Packaging, storaging, transport Returning the device for repair and servicing IDENTIFICATION Supplier/manufacturer Product type Product name Issue date Version no Designation/rating plate APPLICATIONS OPERATIONAL MODE AND SYSTEM DESIGN Operational mode System design Integral mount transmitter Remote mount transmitter PERFORMANCE CHARACTERISTICS Measuring accuracy Measured error Repeatability Reference conditions Fluid conductivity Influence of ambient temperature Influence of fluid temperature Materials Wetted parts Non-wetted parts INSTALLATION/CONDITIONS FOR USE Receipt of goods and transport Receipt of goods Transport Installation conditions Long pipe systems Pumps Bypass Flow tube lining Installation Installation in pipes with larger nominal sizes Horizontal and vertical installation Installation examples Grounding Torques for screws and bolts Remote mount transmitter Wiring Integral mount transmitter Remote mount transmitter type UMF2 (B) Page 2 of 30

3 DMH Installation and Operating Instructions KOBOLD Messring GmbH 6.5 Nominal size and ranges Ambient conditions Ambient temperature range Storage temperature range Climatic category Ingress protection Shock resistance/vibration resistance Process pressure Fluid temperature DIMENSIONS AND WEIGHTS Dimension drawing of DMH-***: DN 10 to DN 1200, flange version Dimensions of flangeless version Dimensions of food connection DIN Dimensions of connection Tri-Clamp Transmitter type UMF2 (B) Integral mount transmitter Sensor terminal box remote mount transmitter Wall mounting Pipe mounting vertical position Pipe mounting horizontal position Dimension drawing: grounding rings MAINTENANCE AUXILIARY POWER, ELECTRICAL CONNECTION CE MARK STANDARDS AND DIRECTIVES, CERTIFICATES AND APPROVALS DECLARATION OF CONFORMITY DECONTAMINATION CERTIFICATE FOR DEVICE CLEANING Page 3 of 30

4 KOBOLD Messring GmbH DMH Installation and Operating Instructions Introduction This installation and operating manual explains how to operate, install and perform maintenance on the flowmeter. Please read the manual carefully before installing the device and putting it into operation. The manual does not apply to non-standard versions or applications. All devices are thoroughly tested and checked for order compliance prior to shipping. Upon receipt of the device, check it for shipping damage. If any problem comes to light, contact our head office in Cologne. Please describe the problem and indicate type and serial number of the device. We extend no guarantee of any kind for repair work that is undertaken without notifying us in advance of the intention to carry out such work. Unless otherwise agreed, any part or component for which a claim is lodged is to be sent to us for examination. 1 Safety advisories 1.1 Installation, commissioning, operating personnel Mechanical and electrical installation, as well as commissioning, maintenance and operation, are to be realized solely by qualified personnel that are authorized by the installation operator to perform such work. All such personnel must read and understand the content of the applicable operating instructions before working with the device. In general, follow the conditions and provisions applicable in your country. Please take note of the technical data on the rating plate and the safety advisories in the Operating Instructions of the corresponding transmitter! 1.2 Intended purpose The electromagnetic flowmeter is to be used solely for measuring the volume flow of liquids, suspensions and pastes with conductivity 5 µs/cm ( 20 µs/cm demineralized cold water). The manufacturer accepts no responsibility for any damage or loss resulting from any other use or from improper use. Heinrichs Messtechnik extends no express or implied warranty in regard to the applicability of the present document for any purpose other than that described herein. Before using corrosive or abrasive fluids, the operator must test the resistance of all wetted materials. We will be happy to assist you in testing the corrosion resistance of wetted parts (for special fluids including cleaning fluids). However, sole responsibility for ensuring that the device is used in accordance with the manufacturer s recommendations rests with the system operator. Minor changes of temperature, concentration or the degree of contamination in the process may cause changes in corrosion resistance. The manufacturer accepts no responsibility for any damage with respect to corrosion resistance of wetted materials in a certain application. 1.3 Packaging / storage / transport Be careful not to damage the device while unpacking it. The device should be stored in a clean, dry room until it is installed so as to prevent particulate matter from entering the device. Make certain that the ambient temperature in the room in which the device is stored lies within the prescribed range. Check to ensure that the technical product data indicated on the delivery note is consistent with the stipulated requirements. If, after the device is unpacked, it is sent elsewhere to be installed, the original packaging and transport protection inserts should be used. 1.4 Returning the device for repair and servicing Note: According to German waste disposal legislation, it is the owner s or customer s responsibility to dispose of hazardous waste. Thus, any devices sent to us for servicing, including their crevices and cavities, must be devoid of any such material. When sending a device for repair, please confirm your compliance with this regulation in writing. In the event any hazardous material is detected on or inside any device sent to us for servicing, we reserve the right to bill the customer for the cost of disposing of such material (see Section 13 Decontamination certificate ). Page 4 of 30

5 DMH Installation and Operating Instructions KOBOLD Messring GmbH 2 Identification 2.1 Supplier/manufacturer KOBOLD Messring GmbH Nordring D Hofheim/Ts. Internet: mailto:info.de@kobold.com 2.2 Product type Magnetic-inductive flowmeter based on Faraday s law of induction 2.3 Product name DMH 2.4 Issue date , mm/dd/yyyy 2.5 Version no. File: DMH_BA_11_en 2.6 Designation/rating plate The rating plate states the following information: Logo Address CE Type Code Ser. No. Tag No. T amb T m C DN PN PS PED Materials MF-Date Degrees of protection Manufacturer s logo Manufacturer s address (Internet address) CE Marking in accordance with the applied EC Directives Type designation Code of the model Serial number (for tracking reasons) Operator s measuring point number (if stated in the order) Ambient temperature range Medium temperature range Sensor constant Flange designation Pressure stage of flange Max. permissible process pressure Information about the Pressure Equipment Directive - For devices with a process connection =< DN 25: o There is no CE Marking in accordance with Section. 3 para. 3 of the PED. Under PED (Pressure Equipment Directive) the reason for exception in accordance with Section 3 para. 3 of the PDE is stated. The device is rated as SDMH (Sound Engineering Practice). - For devices with a process connection > DN 25: o CE Marking with the number of the indicated institution that certified the manufacture of the device. o Fluid group (1G) in accordance with the PED; fluid group 1 comprises dangerous fluids. Material of wetted parts such as pipe lining, material of electrodes and seal Year of manufacture Degrees of protection in accordance with DIN EN 60529:2000 Page 5 of 30

6 KOBOLD Messring GmbH DMH Installation and Operating Instructions 3 Applications The electromagnetic flowmeter is used to measure or monitor the volume flow of fluids with and without solids concentration, slurries, pastes and other electrically conductive media while minimizing pressure drops. The conductivity of the medium must be at least 5 µs/cm. Pressure, temperature, density and viscosity do not affect the volume measurements. Small quantities of solid particles and small gas pockets are also measured as part of the volume flow. A larger number of solid particles or gas pockets will result in failures. 4 Operational mode and system design 4.1 Operational mode In 1832 Faraday suggested utilizing the principle of electrodynamic induction for measuring flow velocities. His experiments in the Thames, though unsuccessful due to superimposed polarization effects, are nonetheless regarded as the first in the field of magnetic-inductive flow measurement. According to Faraday's law of electromagnetic induction, an electrical field E is produced in a conductive liquid moving through a magnetic field B at a velocity v in accordance with the vector product E = [v x B]. A fluid with a flow velocity v and a flow rate Q flowing through a tube (1) with an insulating lining (2) produces a measuring-circuit voltage Um at the two electrodes (4) at right angles to the direction of flow and the magnetic field B generated by the field coils (3). The strength of this measuring-circuit voltage is proportional to the mean flow velocity and therefore the volume flow rate. 4.2 System design The electromagnetic DMH-*** flowmeter consists of a sensor, which picks up an induced measuring signal from the medium flowing through the pipe, and a transmitter which transforms this signal into standardized output signals (4-20 ma or pulses). The sensor is installed in the pipe while the transmitter is mounted directly on the sensor (integral mount) or separately at an external location (remote mount), depending on the device version. Page 6 of 30

7 DMH Installation and Operating Instructions KOBOLD Messring GmbH Integral mount transmitter This type of configuration ensures easy and trouble-free installation Remote mount transmitter This type of configuration is recommended for confined spaces or if the temperature of the fluid is high. The connection between the sensor and the transmitter is established with a cable with separately shielded circuits for field coils and electrodes. Sensor with terminal box Transmitter with wall / pipe mounting bracket Page 7 of 30

8 KOBOLD Messring GmbH DMH Installation and Operating Instructions 5 Performance characteristics 5.1 Measuring accuracy Measured error +/- [0.3 % of actual value * (Q at 10 m/s)] Accuracy Flow velocity v [m/s] Repeatability +/- [0.15 % of actual value * (Q at 10 m/s)] Reference conditions In accordance with DIN EN Fluid temperature 22 C ± 4 K Ambient temperature 22 C ± 2 K Inlet section of 10 x DN and outlet section of 5 x DN 5.2 Fluid conductivity 5 µs/cm ( 20 µs/cm for demineralized water) 5.3 Influence of ambient temperature See Operating Instructions of the corresponding transmitter 5.4 Influence of fluid temperature None Page 8 of 30

9 DMH Installation and Operating Instructions KOBOLD Messring GmbH 5.5 Materials Wetted parts Parts Standard Others Lining Hard rubber PTFE (PFA), soft rubber, Rilsan, Wagunit Measuring and grounding St.st , Hastelloy C4 Tantalum, Platinum electrodes Grounding disk St.st Hastelloy C4,Tantalum Tri-Clamp connection St.st (316L) (on request) Hygenic Conn. DIN St.st (316L) (on request) Non-wetted parts Parts Standard Others Flow tube Stainless steel Housing DN Varnished steel Stainless steel ( standard with connections DIN11851, Tri-Clamp ) Flange Terminal box for remote mount transmitter Varnished steel Aluminum pressure casting, varnished 6 Installation/conditions for use 6.1 Receipt of goods and transport Receipt of goods Check the packaging and contents for damage. Inspect the supplied goods to ensure complete delivery and compare the consignment with your order specifications Transport If possible the devices should be forwarded in the packaging in which they were delivered. Do not remove any protection disks or caps from the process connections. This is particularly important in the case of sensors with a PTFE flow tube lining. The protection caps should only be removed immediately before installation of the device in the pipe. Never lift the devices by the mounted transmitter housing or terminal box for transport. When transporting heavy devices, use slings. Place these around both process connections. Do not use chains as these can damage the surface coating and the housing. When transporting devices without lugs, and when looping the slings around the flow tube, the center of gravity of the entire device can be higher than both attachment points of the slings. When transporting the device ensure that it does not rotate or slip accidentally. This could cause injury. Sensors with a nominal width of more than DN 150 should not be lifted by the sheet metal of the shell with a forklift truck. This could dent the sheet metal of the shell and damage the internal solenoid coils. There is also the risk that the device could roll off the forks. Page 9 of 30

10 KOBOLD Messring GmbH DMH Installation and Operating Instructions 6.2 Installation conditions The installation location in the pipe must be selected so that the sensor is always fully filled with the fluid and cannot run empty. This can best be guaranteed if it is installed in an ascending pipe or drain. The measuring principle is generally independent of the flow profile of the fluid provided no standing vortices reach into the area where the value is measured, such as downstream from elbows or half-open sliding valves upstream from the sensor. In these cases measures must be taken to normalize the flow profile. Practical experience has shown that in most cases a straight inlet section of 5 x DN and an outlet section of 2 x DN of the rated width of the sensor is sufficient. The occurrence of strong electromagnetic fields in the vicinity of the installed sensor is not permitted. In order to be able to perform flow and return measurements, both sides of the sensor must be provided with a straight pipe section with the rated width of the sensor and a length of 5 DN of the rated width of the sensor. It is advisable to install actuators, such as regulating or shut-off devices, downstream from the sensor. The flow direction is marked on the sensor with an arrow. When mounting sensors, always observe the specified screw torques. The electrical system can be taken into operation when the sensor and the cables have been installed and connected. In order to prevent measuring errors caused by gas pockets in the fluid and damage lining of the sensor caused by negative pressure, the following points must be observed Long pipe-systems As pressure surges may occur in long pipes systems, the regulating and shut-off devices must be installed downstream from the sensor. When mounted in vertical pipes - in particular in flow tubes with PTFE lining and in case of higher operating temperatures - the regulating and shut-off devices must be installed upstream from the sensor. (Danger of vacuum might be involved!) Pumps Do not mount the sensor on the suction side of a pump (Danger of vacuum!) Bypass In order to easily dismount, empty and clean the sensor, a bypass pipe may be installed. The bypass with a blind flange permits the fluid pipe to be cleaned without having to dismount the flowmeter. This is recommended for highly soiling fluids Flow tube lining If the flow tube is lined with PTFE, the flowmeter must be installed with special care. The tube lining is bordered at the flanges (seal). This must not be damaged or removed as it prevents the fluid from penetrating between flange and flow tube destroying the electrode insulation. Page 10 of 30

11 DMH Installation and Operating Instructions KOBOLD Messring GmbH 6.3 Installation Screws, bolts, nuts and seals are not supplied by Heinrichs Messtechnik GmbH and must therefore be provided by the operator. Install the sensor between the pipes. Please observe the required torques stated Section The installation of additional grounding rings is described in Section Use for the flanges only seals in accordance with DIN Mounted seals must not reach into the pipe cross section. Caution! Do not use conductive sealing compounds such as graphite. This could result in a conductive layer on the inside of the flow tube that short-circuits the measuring signal Installation in pipes with larger nominal sizes The flowmeter can also be installed in pipes with larger nominal sizes by using pipe tapers (e.g. flange transition pieces in accordance with DIN EN 545). However, the resulting pressure loss must be taken into consideration. In order to avoid flow interruptions in the flow tube, a reducing angle 8 for the tapers should be adhered to Horizontal and vertical installation The flowmeter can be installed wherever required, whereby the intended x-y electrode axis should run almost horizontal. A vertical Electrode axis should be avoided as otherwise the accuracy could be affected by the gas pockets or the solid particles in the fluid. Page 11 of 30

12 KOBOLD Messring GmbH DMH Installation and Operating Instructions Installation examples In order to avoid measuring errors caused by gas pockets and lining damage caused by negative pressure, the following points must be observed: Highest point in pipe system. Air bubbles will accumulate in the tube. Incorrect measurement! Prefered assembly locations Horizontal lining Installation in a slightly ascending pipe. Free inlet or outlet section Preferably install the device in a drain. The empty pipe detection circuit in the transmitter is an additional safety feature for recognizing empty or partially filled pipes. Caution! There is the danger of accumulations of solids in the drain. It is advisable to arrange for a cleaning aperture in the pipe. Fall pipe over five meters long In case of fall pipes that are more than five meters long, arrange for a syphon or a venting valve in order to avoid a negative pressure in the pipe and damage to the lining. In addition, this measure prevents the flow from stopping so that air pockets can be avoided. > 5 m Page 12 of 30

13 DMH Installation and Operating Instructions KOBOLD Messring GmbH Long pipes Always install regulating and shut-off devices downstream from the sensor (Danger of vacuum!). Installation of pumps Do not install flowmeters on the suction side of pumps in order to avoid a negative pressure and damage to the tube lining. If necessary, arrange for pulsation dampeners when using piston, diaphragm or hose pumps. Please consider space requirements with respect to a potential deinstallation of the device Grounding For safety reasons and to ensure faultless operation of the electromagnetic flowmeter, the sensor must be grounded. In accordance with VDE 0100 Part 410 and VDE 0100 Part 540 the grounding connections must be at protective conductor potential. For metrological reasons, the potential should be identical to the potential of the fluid. The grounding cable should not transmit any interference voltage. For this reason do not ground other electrical devices with this cable at the same time. The measuring signal tapped at the electrodes is only a few millivolts. Correct grounding of the electromagnetic flowmeter is therefore an important prerequisite for exact measurement. The transmitter requires a reference potential to evaluate the measured voltage on the electrodes. In the simplest case the non-insulated metal pipe and/or the connecting flange may be used as a reference potential. In case of pipes with an electrically insulating lining or pipes made of plastic, the reference potential is picked up from a grounding disk or grounding electrode. These establish the necessary conductive connection to the fluid and are made of a chemical-resistant material. The material used should be identical to that of the measuring electrodes Grounding electrodes The device can be optionally equipped with grounding electrodes. With plastic pipes this version is the easiest grounding method. As the surface of the grounding electrode is relatively small, the use of grounding disks on both sides is preferable in systems in which high equalizing currents can be expected to occur along the pipe Grounding rings The outside diameter of the grounding ring should be at least equal to the diameter of the flange seal or be dimensioned in such a way that the grounding ring is positioned inside the flange bolts and is centered by these. The terminal lugs routed to the outside must be connected to the FE terminal in the junction box of the sensor. During installation ensure that the internal seals do not protrude over the grounding disk! The grounding cables are not included in the scope of supply and must be provided by the plant operator. The grounding rings can be ordered as accessories. Refer to Section 7.6 for dimensions. Page 13 of 30

14 KOBOLD Messring GmbH DMH Installation and Operating Instructions Grounding examples for the DMH flowmeter Uninsulated metal pipe F Sensor flange RF Pipe flanges D Sealing E Grounding rings PE Ground PA Equipotential bonding FE Functional ground DMH Plastic pipes or lined metal pipes DMH Page 14 of 30

15 DMH Installation and Operating Instructions KOBOLD Messring GmbH Torques for screws and bolts Electromagnetic flowmeters must be installed in the pipe system with special care due to the fact that the flow pipe lining is made of plastic or vulcanized materials such as hard rubber. PTFE for example is malleable under pressure. If the flange screws are tightened too much, the sealing surface will deform. If the seals are supposed to function properly, the correct torque is highly important. Tighten the screws crosswise so that the process connections are tight. When tightening the screws for the first time approx. 50 percent of the required torque should be reached, and for the second time the torque should be 80 percent. The required torque should reach 100 percent when the screws are tightened for the third time. For higher torques it is advisable to use protectors. The following tables states the maximum torques: Nominal size Screws [mm] DIN Pressure rating [bar] Maximum torques [Nm] Pipe lining Hard rubber PTFE PFA 10(LW 6,8,10mm) PN PN 40 4 x M PN 40 4 x M PN 40 4 x M PN 40 4 x M PN 16 4 x M PN 40 8 x M PN 16 8 x M PN 40 8 x M PN 16 8 x M PN 40 8 x M PN 16 8 x M PN 40 8 x M PN 16 8 x M PN 40 8 x M PN 10 8 x M PN x M PN x M PN x M PN x M PN x M PN x M PN x M PN x M Nominal size [inch] ANSI Pressure rating [lbs] Screws Maximum torques [Nm] Pipe lining Hard rubber PTFE PFA ½ (cw 6,8,10mm) Class ½ Class x ½ - 6 ½ Class x ½ Class x ½ Class x 5/ ½ Class x ½ ½ Class x ¾ Class x 5/ Class x 5/ Class x 5/ Class x ¾ Class x 5/ Class x ¾ Class x ¾ Class x ¾ Class x ¾ Class x 7/ Class x 7/ Class x Page 15 of 30

16 KOBOLD Messring GmbH DMH Installation and Operating Instructions Remote mount transmitter The transmitter must be installed separately from the sensor if: the installation area is difficult to access, space is restricted, the fluid and ambient temperatures are high, there is strong vibration. Caution! The cable between transmitter and sensor must be shielded. The outer cable shield must be connected at both ends with special EMC cable glands (e.g. type Hummel HSK-M-EMV). For the remote mount version, the minimum permissible conductivity of the fluid is determined by the distance between the sensor and the transmitter. To ensure accuracy, the maximum cable length of 200 m should not be exceeded. The electrode cable must be fixed. If the conductivity of the fluid is low, cable movements may change the capacity considerably and thus disturb the measuring signals. Do not lay the cables close to electrical machines and switching elements. Do not connect or disconnect the field coil cable before the primary power of the flowmeter has been disconnected. 6.4 Wiring Caution! Installation and wiring may only be performed when the auxiliary power is switched off. Non-compliance can result in electric shock and irreparable damage to electronic parts.when fitting versions with a remote mount transmitter: Only sensors and transmitters with the same serial number may be interconnected. If this is not the case, errors in measurement can occur. Ensure that the stripped and twisted inner cable shield ends in the terminal box up to the terminal are as short as possible. If necessary these must be covered with an insulating hose to prevent short circuits. The outer cable shield must be connected to EMC cable screw connectors at both ends. Page 16 of 30

17 DMH Installation and Operating Instructions KOBOLD Messring GmbH Integral mount transmitter On the integral mount transmitter the connections to the sensor are internally wired. assignment is described in the operating manual of the transmitter. The terminal Remote mount transmitter type UMF2 (B) On the transmitter type UMF2 (B) the sensor cables are provided as a cable tail, which is mounted on the transmitter at the works. The cable length is normally specified in the order. With cable length larger than 10m the UMF2 (B) will be equipped with an own terminal box. Regard the terminal assignment The shielding of the cable must also be connected to the sensor housing on the sensor side with a special metal EMC cable gland Terminal assignment Connecting the cable shield in the cable gland For optimum interference suppression connect the sensor cable shield in the special metal cable glands. Page 17 of 30

18 Nennweite DN... Durchflußmenge in m3 / h -> KOBOLD Messring GmbH DMH Installation and Operating Instructions 6.5 Nominal size and ranges Volume flow depends on the flow velocity and the nominal size of the flowmeter. The following flow rate nomogram shows the flow range which can be measured by a device with a specific nominal size and also nominal size suitable for a specific flow rate. The electromagnetic flowmeter has been designed in such a way that it operates within the range of the flow velocities occurring in practical applications. The flow velocities have an upper range value of between 0.5 m/s and 10 m/s. The nominal size DN of the sensor must be selected, if possible, in such a way that the flow velocity does not drop below the upper range value of 0.5 m/s. In case of fluids with solid particles, the flow velocity should range between 3 m/s and 5 m/s in order to prevent sedimentation in the sensor. The flow nomogram shows the volume flow in m³/h and the flow velocity in m/s in relation to the nominal size DN of the sensor. The y-axis shows the flow values in m³/h. The nominal size DN of the sensor has been selected as parameters for the plotted straight lines. The upper range measuring value m³/h is taken as a basis for determining the sought nominal size DN. This value is given on the y-axis. The value for the flow velocity in m/s is shown on the x-axis. The straight line of the nominal size DN is found at the intersection of the two variables. Flow rate [m3/h] m3/h ,5 0,2 0,1 0,05 0,02 0,01 0,005 0,002 0,25 0,4 0,6 0,8 1 m/s m/s 0,3 0,5 0,7 0,9 1, ,3 0,5 0,7 0,9 1, ,25 0,4 0,6 0,8 1 m/s m/s Fließgeschwindigkeit in m / s -> Flow velocity [m/s] ,5 2 Nominal size DN Liter / sek. m 3 /h DN / ANSI Qmin Qmax Qmin Qmax 6 / ½ 0,01 0,28 0, / ½ 0,03 0,50 0,09 1,8 10 / ½ 0,04 0,78 0,14 2,8 15 / ½ 0,09 1,75 0,32 6,3 20 / ¾ 0,11 2,25 0,41 8,1 25 / 1 0,24 4,89 0,88 17,6 32 / 1 ¼ 0,40 8,03 1,45 28,9 40 / 1 ½ 0,54 10,75 1,94 38,7 50 / 2 0,87 17,33 3,12 62,4 65 / 2 ½ 1,56 31,11 5, / 3 2,27 45,28 8, / , / , / , / , / , / , / , / , / , / , / , / / / / / / Page 18 of 30

19 DMH Installation and Operating Instructions KOBOLD Messring GmbH 6.6 Ambient conditions Ambient temperature range For fluid temperatures > 60 C As the sensors are an element of the pipe, these are normally thermally isolated when installed to save energy and prevent accidental physical contact. Due to the process temperature heat is introduced through the support for securing the integral mount transmitter or the terminal box. For this reason the thermal insulation of the sensor should not extend over more than half of the support. It is essential to prevent inclusion of the installed transmitter or the terminal box in the thermal insulation. The maximum permissible fluid temperature range is stated on the rating plate of the respective version Integral mount transmitter: maximum ambient temperature depending on the fluid temperature Remote mount transmitter: sensor maximum ambient temperature depending on the fluid temperature It must be ensured that the temperature close to the terminal box does not exceed 70 C. Page 19 of 30

20 KOBOLD Messring GmbH DMH Installation and Operating Instructions Remote mount transmitter: maximum ambient temperature depending on the fluid temperature The permissible ambient temperature of the sensor is -20 C to +60 C Storage temperature range The storage temperature range is identical to the ambient temperature range Climatic category In accordance with DIN EN ; not weather-protected Class D1 locations exposed directly to openair climate Ingress protection The sensor meets the requirements of the protection class IP 67. The following must be observed to ensure compliance with protection class IP67 when the device has been installed or serviced: The housing seals must be clean and undamaged when placed in the sealing groove. If necessary the seals must be cleaned or replaced. Tighten the cover screws of the terminal box and tighten the screw cap of the transmitter (integral mount version). The cables used for connection must comply with the specified outer diameter for the cable glands used. Tighten the cable glands firmly. Loop the cable in front of the cable gland. Any moisture running along the cable can then drip off and not penetrate the device. Always install the device so that the cable gland does not face upwards. Any unused cable glands must be closed with a plug which is suitable for the respective protection class. The sensors are also available in an IP 68 version. The maximum permissible immersion depth in water is 5 m. In this case the transmitter is installed separately from the sensor. A special cable is used as a connection cable Shock resistance/vibration resistance The flowmeter should be protected from extreme shocks and vibrations, which could cause damage. Maximum permissible shock/vibration: 15 m/s 2 (10 to150 Hz). Page 20 of 30

21 DMH Installation and Operating Instructions KOBOLD Messring GmbH 6.7 Process pressure The maximum permissible process pressure PS is stated on the rating plate and depends on the fluid temperature. 6.8 Fluid temperature The maximum permissible fluid temperature of the device depends on the version and the lining material of the flow tube and is stated on the rating plate. The German Industrial Safety Act stipulates that very cold or hot components of working equipment must be provided with guards which prevent physical contact of workers with the respective parts. For this reason and also to save energy, in practical applications at temperatures of > 60 C, all pipes and installed measuring instruments are normally thermally insulated. Refer to Section for information on the relation between the fluid temperature and the ambient temperature limits. The temperature ranges for use of the device are listed below for the lining materials Lining material Fluid temperature ranges Hard rubber 0 C to 80 C Soft rubber 0 C to 80 C Wagunit 0 C to 80 C PTFE - 20 C to 150 C PFA -20 C bis 140 C Rilsan 0 C to 100 C Page 21 of 30

22 KOBOLD Messring GmbH DMH Installation and Operating Instructions 7 Dimensions and weights 7.1 Dimension drawing of DMH-***: DN 10 to DN 1200, flange version The flanges correspond to DIN EN or ANSI B lbs Standard Pressure rating DN ASME D / D-ANSI d A* L l Weight [ kg ] 6mm/DN10 ½ 90 / mm/DN10 ½ 90 / mm/DN10 ½ 90 / PN ½ ¾" ¼" ½" " ½" " PN " " " " " " PN o.r. o.r. o.r. o.r. o.r. o.r o.r PN o.r o.r. o.r. o.r. o.r. 520 o.r * Size A is the largest sensor size without integral mount transmitter or terminal box. The sensor weights are approximate values. An additional weight of 2.4 kg (5.3 lbs) must be taken into consideration for the transmitter. o.r. = (on request) Page 22 of 30

23 DMH Installation and Operating Instructions KOBOLD Messring GmbH 7.2 Dimensions of flangeless version PN 40 DN D A* L Weight [ kg ] , , , , PN * Size A is the largest sensor size without integral mount transmitter or terminal box. The sensor weights are approximate values. An additional weight of 2.4 kg (5.3 lbs) must be taken into consideration for the transmitter. o.r. = (on request) Page 23 of 30

24 KOBOLD Messring GmbH DMH Installation and Operating Instructions 7.3 Dimensions of food connection DIN 11851, PN Dimensions of connection Tri-Clamp, PN10 Page 24 of 30

25 DMH Installation and Operating Instructions KOBOLD Messring GmbH 7.5 Transmitter type UMF2 (B) Integral mount transmitter Sensor terminal box remote mount transmitter Page 25 of 30

26 KOBOLD Messring GmbH DMH Installation and Operating Instructions Wall mounting Pipe mounting vertical position Pipe mounting horizontal position 2 pipe 2 pipe Page 26 of 30

27 DMH Installation and Operating Instructions KOBOLD Messring GmbH 7.6 Dimension drawing: grounding rings Welded connection DN PN D [mm] d [mm] L [mm] Page 27 of 30

28 KOBOLD Messring GmbH DMH Installation and Operating Instructions 8 Maintenance The device requires no maintenance if used according to its intended purpose. Cleaning might be necessary due to deposits and dirt on the electrodes or the flow tube. 9 Auxiliary power, electrical connection See rating plate and the Operating Instructions of the corresponding transmitter. 10 CE-Marking The measuring system complies with the legal requirements of the following EU Directives: Directive 2004/108/EC (EMC Directive), Directive 2006/95/EC (Low Voltage Directive) and Directive 97/23/EC (Pressure Equipment Directive). Heinrichs Messtechnik GmbH confirms compliance with the Directives by attaching the CE mark to the device. 11 Standards and directives, certificates and approvals Directive 2006/95 EC (Low Voltage Directive) EN Safety requirements for electrical metering, control and laboratory devices Directive 2004/108//EC (EMC Directive) EN :2005 Immunity industrial environment EN :2007+A1:2011 Emitted interference residential environment EN 55011:2009+A1:2010 Group 1, Class Directive 97/23/EC (Pressure Equipment Directive) AD-2000 Guidelines EN 60529:2010 Degrees of protection through housing (IP code) Page 28 of 30

29 DMH Installation and Operating Instructions KOBOLD Messring GmbH 12 Declaration of conformity We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Magnetic Inductive Flowmeter Model: DMH... to which this declaration relates is in conformity with the standards noted below: EN 61326:2004 EN :1999 EN EN 55011:1998+A1:1999 EN :2004 AD 2000-Merkblätter EMC requirements immunity industrial environment emission residential, commercial ISM ratio-frequency equipment Safety requirements for electrical measuring, control and laboratory devices Regulations for pressure vessel calculations Also the following EC guidelines are fulfilled: 2004/108/EC EMC Directive 2006/95/EC Low Voltage Directive 97/23/EC Pressure Equipment Directive Hofheim, 22. Mai 2014 H. Peters M. Wenzel General Manager Proxy Holder Page 29 of 30

30 KOBOLD Messring GmbH DMH Installation and Operating Instructions 13 Decontamination certificate for device cleaning Company name:... Address:... Department:... Name of contact person:... Phone:... Information pertaining to the enclosed flowmeter Model DMH-... was operated using the following fluid:... In as much as this fluid is water-hazardous / toxic / corrosive / combustible we have done the following: - Checked all cavities in the device to ensure that they are free of fluid residues* - Washed and neutralized all cavities in the device* *cross out all non-applicable items We hereby warrant that no health or environmental hazard will arise from any fluid residues on or in the enclosed device. Date:... Signature... Stamp Page 30 of 30

31 Transmitter for magnetic-inductive flowmeters UMF2 (B) Operating Manual Please read the instructions carefully and store them in a save space

32 Inhalt INTRODUCTION... 7 I. Shipping and storage; product inspection... 7 II. Warranty... 7 III. Application domain the operating manual... 7 IV. Measures to be taken before sending your device to the manufacturer for repair... 7 V. Supplementary operating instructions regarding the HART interface... 7 VI. Operating manual of explosion-proof flowmeters STEPS PRIOR TO OPERATION Installation and servicing Safety advisory for the user Hazard warnings Danger Warning Caution Note Proper use of the device Returning your flowmeter for servicing or calibration Replacement of the transmitter electronics IDENTIFICATION COMMISSIONING Installation of magnetic-inductive flowmeters Potentials Cathodic protective units Zero point calibration Startup conditions Commisioning the PIT, PITE and PITY flow velocity sensors Page 2 of 77 Operating Manual UMF2 (B)

33 4. APPLICATION DOMAIN OF UMF2 (B) TRANSMITTER UMF2 (B) TRANSMITTER: MODE OF OPERATION AND CONFIGURATION Measuring principle System design Standard version Control unit BE Optional equipment Data memory chip DSM Safety of operation INPUT Measured variable Measuring range Operating the PIT, PITY and PITY flow velocity sensors with UMF2 (B) OUTPUT Output signal Failure signal Load of the current output Damping Low flow cut-off UMF2 (B) PERFORMANCE CHARACTERISTICS Reference conditions Measuring tolerance Repeatability Influence of ambient temperature UMF2 (B) OPERATING CONDITIONS Installation conditions Compact version Separate version Environmental conditions Ambient temperature Ambient temperature range Operating Manual UMF2 (B) Page 3 of 77

34 9.2.3 Storage temperature Degree of protection Process conditions Fluid temperature State of aggregation Viscosity Fluid temperature limit Flow rate limit Pressure loss Empty pipe detection CONSTRUCTION DETAILS Type of construction / dimensions of separate version Weight Material Electrical connection Process terminals Mains and signal terminals HART connection Wiring diagramm for the separate version UMF2 (B) sensor terminals Cable specification MAINTENANCE AND REPAIR Mains fuse Replacement of terminal board Exchange of transmitter electronic UMF2 (B) CONTROL UNIT Introduction Display Operating modes Operation Operation interface The keys and their functions Functional classes, functions and parameters Page 4 of 77 Operating Manual UMF2 (B)

35 13. UMF2 (B) TRANSMITTER FUNCTIONS MEASURED VALUES functional class Volume flow rate Forward flow counter Forward flow counter Reverse flow counter Flow velocity Relative flow rate QV + Forward flow counter QV + Forward flow counter QV + flow velocity Display mode during startup Raw values PASSWORD functional class Customer-password Change customer password Service password Counter functional class Unit of counters Reset counter MEASUREMENT PROCESSING functional class Damping Low flow cut-off Low flow cut-off hysteresis Zero point calibration Filter Flow functional class Volume flow QV unit Volume flow lower-range value Volume flow upper-range value Volume flow limit MIN Volume flow limit MAX QV limit hysteresis Density Volume flow LSL (information field) Volume flow USL (information field) PULSE OUTPUT functional class Pulse or frequency output Pulse output unit Pulse value Pulse width STATUS OUTPUT functional class Status output active state Status output assignment CURRENT OUTPUT functional class Current output 0/4-20 ma Current output alarm SIMULATION functional class Operating Manual UMF2 (B) Page 5 of 77

36 Simulation on / off Simulation direct / preset value Q Simulation measured flow Q Direct simulation of outputs SELF-TEST fuctional class Self-test test on / off Self-test period (STP) Reference calibration on / off Reference calibration period (GAP) Empty pipe detection on / off Empty pipe detection period SETTINGS TRANSMITTER functional class Language Serial number (information field) Software version (information field) Mains frequency Show system errors Reset system error SETTINGS SENSOR functional class Sensor constant C Sensor type Inside diameter Flow direction Excitation frequency UMF2 (B) TRANSMITTER ERROR MESSAGES Standard operating mode List of error messages Display of self-test errors Display of system error Reset system error CERTIFICATES AND APPROVALS STANDARDS AND AUTHORIZATIONS General standards and directives Electromagnetic compatibility DECONTAMINATION CERTIFICATE FOR DEVICE CLEANING Page 6 of 77 Operating Manual UMF2 (B)

37 Introduction I. Shipping and storage; product inspection Shipping and storage The device is to be safeguarded against dampness, dirt, impact and damage. Product inspection Upon receipt of the product, check the contents of the box and the product particulars against the information on the delivery slip and order form so as to ensure that all ordered components have been supplied. Notify us of any shipping damage immediately upon receipt of the product. Any damage claim received at a later time will not be honored. II. Warranty Your flowmeter was manufactured in accordance with the highest quality standards and was thoroughly tested prior to shipment. However, in the event any problem arises with your device, we will be happy to resolve the problem for you as quickly as possible under the terms of the warranty which can be found in the terms and conditions of delivery. Your warranty will only be honored if the device was installed and operated in accordance with the instructions for your device. Any mounting, commissioning and/or maintenance work is to be carried out by qualified and authorized technicians only. III. Application domain the operating manual The present manual applies to magnetic-inductive flowmeters series PIT, PITY, PITE and DMH that are operated in conjunction with the UMF2 (B) transmitter. IV. Measures to be taken before sending your device to the manufacturer for repair It is important that you do the following before shipping your flowmeter to Heinrichs Messtechnik GmbH for repair: Enclose a description of the problem with your device. Describe in as much detail as possible the application and the physical and chemical properties of the fluid. Remove any residues from the device and be sure to clean the seal grooves and recesses thoroughly. This is particularly important if the fluid is corrosive, toxic, carcinogenic, radioactive or otherwise hazardous. The operator is liable for any substance removal or personal damage costs arising from inadequate cleaning of a device that is sent for repair. V. Supplementary operating instructions regarding the HART interface For information regarding operation of the transmitter using the HART hand-held terminal, see Operation of the UMF2 transmitter using the HART hand-held terminal. VI. Operating manual of explosion-proof flowmeters For installation of the sensor and transmitter within hazardous areas the transmitter UMF2 (B) has no approval. Operating Manual UMF2 (B) Page 7 of 77

38 1. Steps prior to operation It is essential that you read these operating instructions before installing and operating the device. The device is to be installed and serviced by a qualified technician only. The UMF2 (B) transmitter is to be used exclusively to measure mass and volume flow, as well as liquid and gas density and temperature, in conjunction with a KOBOLD Messring GmbH PIT, PITY, PITE or DMH sensor. Downloading of the present document from our web site and printing out this document is allowed only for purposes of using our mass flowmeters. All rights reserved. No instructions, wiring diagrams, and/or supplied software, or any portion thereof, may be produced, stored, in a retrieval system or transmitted by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of KOBOLD Messring GmbH. Although the materials in the present document were prepared with extreme care, errors cannot be ruled out. Hence, neither the company, the programmer nor the author can be held legally or otherwise responsible for any erroneous information and/or any loss or damage arising from the use of the information enclosed. KOBOLD Messring GmbH extends no express or implied warranty in regard to the applicability of the present document for any purpose other than that described. We plan to optimize and improve the products described and in so doing will incorporate not only our own ideas but also, and in particular, any suggestions for improvement made by our customers. If you feel that there is any way in which our products could be improved, please send your suggestions to the following address: KOBOLD Messring GmbH Headword: UMF2 (B) Nordring D Hofheim/Taunus or: via fax: via info.de@kobold.com We reserve the right to change the technical data in this manual in the light of any technical progress that might be made. For updates regarding this product, visit our website at where you will also find contact information for the KOBOLD distributor nearest you. For information regarding our own sales operations, contact us at info.de@kobold.com. Page 8 of 77 Operating Manual UMF2 (B)

39 1.1 Installation and servicing The devices described in this manual are to be installed and serviced only by qualified technical personnel such as a qualified KOBOLD electronics engineer or service technician. Warning Before servicing the device, it must be completely switched off, and disconnected from all peripheral devices. The technician must also check to ensure that the device is completely off-circuit. Only original replacement parts are to be used. KOBOLD Messring GmbH accepts no liability for any loss or damage of any kind arising from improper operation of any product, improper handling or use of any replacement part, or from external electrical or mechanical effects, overvoltage or lightning. Any such improper operation, use or handling shall automatically invalidate the warranty for the product concerned. In the event a problem arises with your device, please contact us at one of the following numbers to arrange to have your device repaired: Phone: Fax: Contact our customer service department if your device needs repair or if you need assistance in diagnosing a problem with your device 1.2 Safety advisory for the user The present document contains the information that you need in order to operate the product described herein properly. The document is intended for use by qualified personnel. This means personnel who are qualified to operate the device described herein safely, including electronics engineers, electrical engineers, or service technicians who are conversant with the safety regulations pertaining to the use of electrical and automated technical devices and with the applicable laws and regulations in their own country. Such personnel must be authorized by the facility operator to install, commission and service the product described herein, and are to read and understand the contents of the present operating instructions before working with the device. 1.3 Hazard warnings The purpose of the hazard warnings listed below is to ensure that device operators and maintenance personnel are not injured and that the flowmeter and any devices connected to it are not damaged. The safety advisories and hazard warnings in the present document that aim to avoid placing operators and maintenance personnel at risk and to avoid material damage are prioritized using the terms listed below, which are defined as follows in regard to these instructions herein and the advisories pertaining to the device itself Danger means that failure to take the prescribed precautions will result in death, severe bodily injury, or substantial material damage Warning means that failure to take the prescribed precautions could result in death, severe bodily injury, or substantial material damage. Operating Manual UMF2 (B) Page 9 of 77

40 1.3.3 Caution means that the accompanying text contains important information about the product, handling the product or about a section of the documentation that is of particular importance Note means that the accompanying text contains important information about the product, handling the product or about a section of the documentation that is of particular importance. 1.4 Proper use of the device Warning The operator is responsible for ensuring that the material used in the sensor and housing is suitable and that such material meets the requirements for the fluid being used and the ambient site conditions. The manufacturer accepts no responsibility in regard to such material and housing. Warning In order for the device to perform correctly and safely, it must be shipped, stored, set up, mounted operated and maintained properly. 1.5 Returning your flowmeter for servicing or calibration Before sending your flowmeter back to us for servicing or calibration, make sure it is completely clean. Any residues of substances that could be hazardous to the environment or human health are to be removed from all crevices, recesses, gaskets, and cavities of the housing before the device is shipped. Warning The operator is liable for any loss or damage of any kind, including personal injury, decontamination measures, removal operations and the like that are attributable to inadequate cleaning of the device. Any device sent in for servicing is to be accompanied by a certificate as specified in Section 17 Decontamination certificate for device cleaning! The device is to be accompanied by a document describing the problem with the device. Please include in this document the name of a contact person that our technical service department can get in touch with so that we can repair your device as expeditiously as possible and therefore minimize the cost of repairing it. Page 10 of 77 Operating Manual UMF2 (B)

41 1.6 Replacement of the transmitter electronics Before replacing the transmitter electronics, read the safety instructions in Section 1.1 Installation and servicing on page 9. Warning Make sure that you abide by the applicable standards and regulations pertaining to electrical devices, device installation and process technology when replacing the transmitter electronics. The highly integrated electronic components in the device carry the risk of ESD hazards and are only protected when installed in the device pursuant to EMC standards. The exchange of electronic components or board is described in details in chapter 11 Maintenance and repair starting at page 31. Caution The complete insert is to be replaced with all of its printed boards (except for the memory chip (DSM)). This is particularly important for the explosion-proof transmitter. The specified precision and interchangeability of the electronics are only guaranteed if the complete insert is replaced. 2. Identification Manufacturer Product type Product name KOBOLD Messring GmbH Nordring D Hofheim/Taunus Phone: +49 (6192) Fax: +49 (6192) Internet: info.de@kobold.com Transmitter for magnetic-inductive flowmeters Transmitter Type UMF2 (B), suitable for PIT, PITY and DMH magnetic-inductive flowmeters Version no 3.0, dated Operating Manual UMF2 (B) Page 11 of 77

42 3. Commissioning 3.1 Installation of magnetic-inductive flowmeters At the installation of the magnetic-inductive flow sensor the instructions and notes of the assembly instructions and operating manuals have to be followed. Also, abserve the regulations of grounding, potential equalization and company-internal grounding guidelines. 3.2 Potentials All outputs are electrically isolated from the auxiliary power, the sensor circuit and from each other. The housing and the interference suppression filters of the power supply are connected to PE. The electrodes and measuring electronics are related to the potential of the function earth FE of the sensor. FE is not connected to PE, but may be connected with each other in the sensor junction box. If the sensor is grounded by using ground disks (earthing rings), these must in connected with the function earth FE. At a separate assembly of sensor and transmitter the outer screen of the connecting cable is connected to the transmitter housing and has PE potential. The inner screens of the electrode line are connected to FE inside the junction box of the sensor and to the mass (Gnd) of the transmitters electronic. Details of all wirings, terminals and drawing can be found in the chaper 10.4 Electrical connection starting at page Cathodic protective units Using a cathodic protective unit to avoid corosion, which put a voltage to the tube wall, it must be connected to terminal FE. The transmitter boards, control panal and internal switches are on the same potential as FE. Warning According to EN 50178:1997 all electrical circuits with protectiv safety isolation without any protection against contacts must observe the following maximum voltages: Maximum AC voltage (root mean square value) 25 V Maximum DC voltage 60 V It is strictly forbidden to connect FE to any higher voltage! Page 12 of 77 Operating Manual UMF2 (B)

43 3.4 Zero point calibration In order to ensure that precise measurements are obtained, zero point calibration is to be realized the first time the device is put into operation and before any regular operations are carried out. Zero point calibration is to be carried out using a fluid. The zero calibration procedure is as follows: Install the sensor as described in the manufacturer s instructions. Check to ensure that the sensor is completely filled with fluid and that there are no gas bubbles in the flow tubes. Define the process conditions such as pressure, temperature and density. Close a potential shut-off device behind the sensor. Operate the transmitter in accordance with the instructions in chapter chapter Zero point calibration on page 48. Make sure that sufficient time is allowed for the electronics to warm up. Allowing fluid to flow through the sensor during the zero calibration procedure will skew the zero point and result in false readings. 3.5 Startup conditions The device is not subject to specific startup conditions. However, pressure surges should be avoided. 3.6 Commisioning the PIT, PITE and PITY flow velocity sensors In order to be able to calculate the volume flow when using the sensors of the series PIT, PITE and PITY correctly from the measured flow velocity, the installation requirements must be kept regarding position and mounting depth correctly. If from the manufacturer already during the calibration of the measuring instrument does not take place, the settings must be made as specified in chapter 6.3 Operating the PIT, PITY and PITY flow velocity sensors with UMF2 (B) on page 18 to the correct operation! This applies in particular with exchange or when changes in the tubing cross section of existing installations. Operating Manual UMF2 (B) Page 13 of 77

44 4. Application domain of UMF2 (B) transmitter The microprocessor controlled UMF2 (B) transmitter (hereinafter referred to as UMF2 (B)) for use with PIT, PITY and DMH sensors is a programmable transmitter that processes measurement data and displays and transmits various types of measurement results. The UMF2 (B) is communication enabled and supports optional the HART protocol. The device can be customized using control unit BE3 (option). Although basic configuration settings such as transmitter calibration are realized at the factory, other settings such as those for measurement data processing, analysis, display and output are user definable. User settings are protected by a user definable password. Settings that are essential for proper operation of the transmitter in conjunction with the sensor (e.g. calibration and initialization values) are accessible only to service technicians via a password that is not provided to customers. Page 14 of 77 Operating Manual UMF2 (B)

45 5. UMF2 (B) transmitter: mode of operation and configuration 5.1 Measuring principle It was back in 1832 that Faraday suggested utilizing the principle of electrodynamic induction for measuring flow velocities. His experiments in the Thames, though unsuccessful due to superimposed polarization effects, are nonetheless regarded as the first experiment in the field of magnetic-inductive flow measurement. According to Faraday s law of electromagnetic induction, an electrical field E is produced in a conductive liquid moving through a magnetic field B at a velocity v in accordance with the vector product E = [v x B]. Through a meter tube provided with an insulating lining a liquid flows at velocity v and a flow rate Q, producing a measuring-circuit voltage Um at the two electrodes at right angles to the direction of flow. The size of this measuring-circuit voltage is proportional to the mean flow velocity and the volume flow rate. Operating Manual UMF2 (B) Page 15 of 77

46 5.2 System design The meter consists of a sensor e.g. EP series and a UMF2 (B) transmitter. The device can be used to perform measurements with any liquid, conductive media, providing that the sensor s material is suitable for the product being used. The UMF2 (B) transmitter generates the inductive current necessary for the magnetic field and preprocesses the induced voltage at the electrodes Standard version As standard UMF2 (B) has 1 active 0/4 20 ma analogue output, 1 passive pulse or frequency output and 1 passive status output Control unit BE3 A LCD display with backlight is a standard feature. The display shows measured values as well as diagnostics. With 6 keypads customers are able to configure comfortable and simple the transmitter without any other tool Optional equipment HART-Interface An analog 0/4 20 ma output is a standard feature and digital data transmission via HART protocol as an optional feature of the device. A retrofit by customer is not possible Empty pipe detection Transmitters, which are equipped with a control unit BE3, have an on and off switch able empty pipe detection. The operating reliability depends on the conductivity of the liquid medium and the cleanliness of the electrodes. As bigger the conductivity is, as more reliable operates the empty pipe detection. Insulation coatings on the electrodes surface worse the empty pipe detection. Page 16 of 77 Operating Manual UMF2 (B)

47 5.2.4 Data memory chip DSM The replaceable data memory chip (DSM) is an EEPROM device in DIL-8 housing, located in a socket on the power supply board. It contains all characteristic data of the sensor e.g. sensor constant, version or serial number. Consequently, the memory module is linked to the sensor and in case of a transmitter replacement it has to remain by the sensor! After replacing the transmitter or its electronics, the DSM will be installed in the new transmitter. After the measuring system has been started, the measuring point will continue working with the characteristic values stored in the DSM. Thus, the DSM offers maximum safety and high comfort when exchanging device components. Electronic, Power supply board UMF2-20 Slot DSM At any exchange watch the polarity of the memory chip. Pin 1 is signed by a dot or a notch Safety of operation A comprehensive self-monitoring system ensures maximum safety of operation. Potential errors can be reported immediately via the configurable status output. The corresponding error messages will also be displayed on the transmitter display. A failure of the auxiliary power can also be detected via the status output. When the auxiliary power fails, all data of the measuring system will remain in the DSM (without backup battery). All outputs are electrically isolated from the auxiliary power, the sensor circuit and from each other. Operating Manual UMF2 (B) Page 17 of 77

48 6. Input 6.1 Measured variable Mass flow rate, temperature, density and volume flow (calculated from the preceding measured variables). 6.2 Measuring range The measuring range, which varies according to which sensor is used, can be found on the relevant data sheet or rating plate. 6.3 Operating the PIT, PITY and PITY flow velocity sensors with UMF2 (B) The PIT, PITE and PITY sensors are calibrated for flow velocity. In order to display the measured value in volume flow units, it must be converted using the flow velocity and the inside diameter of the tube. The following parameters must be set at the UMF2 (B): 1. At the functional level Sensor Settings, the sensor type (PIT, PITE or PITY) is set by manufacturer. The dimension of the sensor constants will be automatically set to m/s*mv. 2. Setting of the sensor constants in x.xxx m/s*mv 3. Inside diameter of the tube in xxx mm 4. At the functional class Flow, set the desired unit of volume flow. 5. Using the function Volume Flow Upper-Range Value, set the upper-range value. Page 18 of 77 Operating Manual UMF2 (B)

49 7. Output 7.1 Output signal All signal outputs: Electrically isolated from each other and from ground (PE). Analog output: 0/4-mA current output, electrically isolated, optional with HART Volume flow or flow speed (Using the HART -protocol the current output has to be assigned to volume flow in the mode of 4-20mA) Pulse output: Pulse duration; default value 50 ms, Pulse duration adjustable range is 0, ms Mark-to-space ratio is 1:1, if the set pulse duration is not reached. When programming the pulse duration, a plausibility check is carried out. If the selected pulse duration is too long for the set upper range value, an error message will be displayed. f max = 1 khz passive via optocoupler U = 24 V U max = 30 V I max = 60 ma P max = 1,8 W Pulse value: 1 pulse/unit The pulse value can be multiplied by a factor between (decade increments) of the selected pulse unit (e.g. m³) Status output: for: forward and reverse flow, MIN flow rate, MAX flow rate or alarm, passive via optocoupler U = 24 V U max = 30 V I max = 60 ma P max = 1,8 W Operating Manual UMF2 (B) Page 19 of 77

50 7.2 Failure signal A failure in the meter can be indicated via the current output or the status output. The current output ca be set to a failure signal (alarm) of I < 3.8 ma or I > 22 ma. The status output can be configured as make or break contact. 7.3 Load of the current output Standard version: 600 Ohm HART minimum load > 250 Ohm 7.4 Damping Programmable from 0 to 60 seconds 7.5 Low flow cut-off The low-flow cut-off can be set to values between 0 and 20% using the software. The set value refers to the upper range value. If the measured value is lower than the set volume, the flow rate will set to 0.0 (l/h). This results in the analog output being set to 0/4 ma, and the pulse output will stop generating pulses. The configurable hysteresis takes effect only one side while exceeding this limit. Page 20 of 77 Operating Manual UMF2 (B)

51 8. UMF2 (B) performance characteristics 8.1 Reference conditions In conformity with IEC 770: temperature: 20 C, relative humidity: 65%, air pressure: 101,3 kpa 8.2 Measuring tolerance See characteristic values of the corresponding sensor. 8.3 Repeatability See characteristic values of the corresponding sensor. 8.4 Influence of ambient temperature For the pulse output: 0.05 % per 10 K. For the current output: 0.1 % per 10 K. 9. UMF2 (B) operating conditions 9.1 Installation conditions The UMF2 (B) transmitter can be installed directly on the sensor (compact version) observing the operating conditions of the sensor or be mounted separately on the outside (separated version) Compact version Warning: Additional cable glands: They are not contained in the scope of supply. The operator is responsible for that fact that according to the enclosure and ignition enclosure certified cable glands or screws are used. The kind of threads is stamped on the rating plate. At the connection between sensor and transmitter a metalized cable gland must be used for the screen. (See 10.7 Wiring diagramm for the separate version on page 29) At the compact version the transmitter housing SG2 is mounted on the sensor. Therefore no cable is necessary between sensor and transmitter Separate version The transmitter needs to be mounted separately from the sensor if the mounting area is difficult to access there is a lack of space medium and ambient temperatures are extremely high there is strong vibration Proper installation of cables at high humidity and wetness Operating Manual UMF2 (B) Page 21 of 77

52 The UMF2 (B) transmitter has to be mounted free of vibrations! Cable length for separate version Conductivity [µs/cm] impermissibile range Cable length [m] Caution: For the separate version, the minimum permissible conductivity of the medium is determined by the distance between the sensor and the transmitter. The maximum cable length to ensure accuracy is 200 m. For the cable type see section 10.8 Cable specification on page 30. Caution: The electrode cable must be fixed. If the conductivity of the medium is low, cable movements may change the capacity considerably and thus disturb the measuring signal. Do not lay the cables close to electrical machines and switching elements. Equipotential bonding must be ensured between sensor and transmitter. Caution: Do not connect or disconnect the field coil cable before the primary power of the meter has been disconnected! Page 22 of 77 Operating Manual UMF2 (B)

53 9.2 Environmental conditions Ambient temperature - 20 Celsius to + 60 Celsius (-4 F to 140 F), below 0 C the readability of the LC display will be limited Ambient temperature range -20 Celsius to + 60 Celsius (-4 F to 140 F) In the case of an outdoor installation, the device must be protected against direct solar irradiation with a weather shield Storage temperature - 20 Celsius to + 60 Celsius (-4 F to 140 F) Degree of protection SG2b standard housing, IP68 (NEMA 6P). Caution: Ingress protection IP 68 is only achieved if suitable and tightly screwed down cable glands or conduits are used. If the cable glands are only tightened manually water may leak into the terminal compartment in the housing. Danger: Particular care must be taken if the window in the housing becomes fogged over or discolored because moisture, water or product might seep through the wire sheath into the terminal compartment in the housing! Warning Electromagnetic compatibility is only achieved if the electronics housing is closed. Leaving the enclosure open can lead to electromagnetic disturbances. Operating Manual UMF2 (B) Page 23 of 77

54 9.3 Process conditions Fluid temperature The data sheet/rating plate of the connected transmitter must be observed. With directly mounted transmitter on the sensor the heat entry must be considered from the process to the transmitter State of aggregation Liquid Viscosity No restrictions. The data sheet/rating plate of the connected transmitter must be observed Fluid temperature limit The data sheet/rating plate of the connected transmitter must be observed Flow rate limit The data sheet/rating plate of the connected transmitter must be observed Pressure loss The data sheet/rating plate of the connected transmitter must be observed Empty pipe detection Transmitters, which are equipped with a control unit BE3, have an on and off switch able empty pipe detection. The operating reliability depends on the conductivity of the liquid medium and the cleanliness of the electrodes. Page 24 of 77 Operating Manual UMF2 (B)

55 10. Construction details 10.1 Type of construction / dimensions of separate version SG2 transmitter housing horizontal mounting SG2 transmitter housing vertical pipe mounting Operating Manual UMF2 (B) Page 25 of 77

56 SG2 wall mounting SG2 with terminalbox Page 26 of 77 Operating Manual UMF2 (B)

57 10.2 Weight Aprox. 2,8 kg (separate UMF2 (B) transmitter) 10.3 Material Housing: aluminum die-cast housing, powder-coated 10.4 Electrical connection Mains 230 V AC +10%, -15% 50/60 Hz 115 V AC; +10%, -15%; 50/60 Hz or 24 V DC ±15 % Power input 10 VA Mains fuse: 5x20mm DIN Mains voltage r. Current rated voltage breaking capacity 230 V AC 100mAT 250V AC 80A / 250V AC 115 V AV 100mAT 250V AC 80A / 250V AC 24 V DC 1 AT 250V AC 80A / 250V AC e. g. Fa. Wickmann series Process terminals Terminals located at the rear side of the transmitter s housing. Operating Manual UMF2 (B) Page 27 of 77

58 Mains and signal terminals UMF2 (B) mains and signal terminals Process terminals Terminal Label Polarity Function 1 PE Protective conductor 2 N Mains 3 L Mains 4 Pulse - Pulse output (passive) 5 Pulse + Pulse output (passive) 6 Status - Status output (passive) 7 Status + Status output (passive) 8 Current Out. - Current output (active) 9 Current Out. + Current output (active) 10.6 HART connection A number of options are available for HART communication. However, for all these options loop resistance must be less than the maximum load specified in Section 7.3 Load of the current output (on page 20). The HART -Interface is connected via terminals 8 and 9 of the active current output. The minimum load impedance must be 250Ω. Page 28 of 77 Operating Manual UMF2 (B)

59 10.7 Wiring diagramm for the separate version For cable specification see chapter 10.8 on page 30. The outer shield has to be connected to the metalized cable glands at both ends. The inner shields are connected to each other and are plugged into the terminal labeled Schirm / shield. They are are related to the potential of the function earth FE. (See also section 3.2 Potentials at page 12.) Note: terminal diagrann Schematic representation of a wiring between flow sensor and remote mounted transmitter. Terminal diagram is always shown is the documentation of flow sensor. Caution: Do not connect or disconnect the field coil cable before the primary power of the meter has been disconnected! Operating Manual UMF2 (B) Page 29 of 77

60 UMF2 (B) sensor terminals Sensor terminals Terminal Label Polarity Function 1 FE Screen field coil 2 SP - - Field coil 3 SP + + Field coil 4 FE Shield / Functional ground 5 E1 Elektrod 1 6 E2 Elektrod 2 Observe also the advices in chapter 9.2 Environmental conditions on page Cable specification If the transmitter is mounted separately from the sensor, the following cables must be used: Elektrode cable and field coil cable as shielded twisted pair. In order to protect the cable from external interference, the twisted-pair wires are covered by an additional, overall shield e.g. LIYCY-CY TP 2x2x0.25 mm². At cable length more than 10m a wire cross section of at least 0,75mm² is required e.g. SLIYCY-C11Y ( 2x ( 2x 0.75mm²)). The outer shield is groundet by means of special EMC-compliant cable glands at both ends of the cable. Page 30 of 77 Operating Manual UMF2 (B)

61 11. Maintenance and repair The transmitter UMF2 (B) is designed as maintenance-free performance. It contains no parts, which have to be replaced or adjusted cyclically. While commissioning or maintenance, mains power must be switched off. Do not connect or disconnect the wirings between sensor and transmitter while power is on! 11.1 Mains fuse The mains fuse is located in the terminal compartment. Before exchanging the fuse, the power has to be switched off. Check, if voltage free. The fuse may only be exchanged by the exactly same kind of fuse! (See also 10.4 Electrical connection on page 27.) 11.2 Replacement of terminal board The terminal board is located in the terminal compartment. Before exchanging the board, the power has to be switched off. Check, if voltage free. The board may only be exchanged by the exactly same kind of board. To exchange the terminal board, all pluggable connectors have to be released. The board is fixed by 4 screws. To exchange the board, these screws have to be loosened. Installing the board, the screws have to be secured again by toothed washers. Only after all connectors are plugged in, the power can be switched on again Exchange of transmitter electronic The transmitter electronic may be exchanged only as complete module. With the exchange of individual components the transmitter is afterwards no longer calibrated neither regarding its measuring characteristics nor its analog outputs. The exchange has to be done as described in the following: 1. Mains power off. 2. Unclamp the 6 pole tab connector in the terminal compartment. 3. Remove the control unit BE2 or decoration foil inside the electronic compartment. 4. Unplug the green connector on the power supply board. 5. Disconnect the sensor s wires on the power supply board. 6. Screw out all 3 studs consistently and simultaneously. 7. Pull out carefully the electronic boards. 8. The data memory chip (DSM) has to be plug out of the socket and to be placed into the same socket of the new electronic stack. 9. Insert the new electronics and feed the tab connection again into the terminal compartment through the hole in the compartment partitions wall. 10. Reverse to item 1 to 6 of this list assemble the transmitter. 11. Before powering on, check all connectors to be plugged in correctly and all wires and devices are fixed. After the exchange the transmitter is calibrated by the take-over of the data memory chip (DSM) for the sensor. All totalized counts and settings are taken on. Operating Manual UMF2 (B) Page 31 of 77

62 12. UMF2 (B) control unit 12.1 Introduction The UMF2 (B) transmitter can be operated depending on equipment by using the control unit BE3 or via a HART interface. In the following, transmitter operation and parameterization using control unit BE3 are described. The control unit is located in the electronic compartment and covered by an inspection window Display Control unit BE3 in the UMF2 (B) has an integrated back lighted, alphanumeric display with two 16- character lines (format 16 x 60 mm). Measurement data and settings can be read directly from this display. The LCD display is designed be operated at temperatures ranging from 20 C to + 60 C (-4 F to 140 F) without incurring any damage. However, at freezing or near-freezing temperatures, the display becomes slow and readability of the measured values is reduced. At temperatures below 10 C (14 F), only static values (parameter settings) can be displayed. At temperatures exceeding 60 C (140 F), contrast decreases substantially on the LCD and the liquid crystals can dry out. Page 32 of 77 Operating Manual UMF2 (B)

63 12.3 Operating modes The UMF2 (B) can be operated in the following modes: 1. Display mode: In display mode, measured values can be displayed in various combinations and UMF2 (B) settings can also be displayed. Parameter settings cannot be changed in this mode. Display mode is the standard (default) operating mode when the device is switched on. 2. Programming mode: In programming mode, UMF2 (B) parameters can be redefined. After entering the correct password, changes that are permissible for the customer (customer password) or all functions (service password for technicians) can be realized Operation Operation interface Functional classes are displayed as headings beneath which displays and parameters are shown in logical groups. Beneath this is the menu level, which lists all measured value displays or the headings for their underlying parameters (parameter level). Functional class Functional class Legend Headline Main menu Functionial class Functionial class All functional classes are interlinked horizontally, while all subpoints that are assigned to a functional class are displayed beneath the relevant class. Function with numerical Function Input with numerical Input Numerical Input Parameter level Display Display Menu level subpoint Function value Function selected value from list selected from list Selection [no] no yes Operating Manual UMF2 (B) Page 33 of 77

64 The keys and their functions There are sic keys to change the settings. Caution Do not press these keys with sharp or sharp-edged objects such as pencils or screwdrivers! Cursor keys: Using the cursor keys, the operator can change numerical values, give YES/NO answers and select parameters. Each key is assigned a symbol in the following table: Descriptor Cursor key, arrow to the right Cursor key, arrow to the left Cursor key, arrow to the top Cursor key, arrow to the bottom Symbol Esc key: The Esc key allows you to cancel the current action. Pressing Esc moves you to the next higher level where the operator can repeat the action. Pressing Esc twice moves you directly to the MEASURED VALUES functional class. ENTER key: Pressing (ENTER key) moves you from the menu level to the parameter level. You confirm all entries with the key. Page 34 of 77 Operating Manual UMF2 (B)

65 Functional classes, functions and parameters Functional classes are written in all upper case letters (headings). The functions beneath each functional class are written in upper and lower case. The various functional classes and functions are describes in Section 13 UMF2 (B) transmitter functions" starting on page 37. The lower lines contains the following elements: - Informational texts, - YES/NO answers - Alternative values - Numerical values (with dimensions, if applicable) - Error messages. If the user attempts to modify values for any of these parameters without entering the required password, the message Access denied will be displayed (see also 12.3 Operating modes on page 33 and Passwords on page 36) Selection window / make a selection In the selection window, the first line of the LCD always contains the heading, while the second line displays the current setting. This setting is shown in square brackets if the system is in Programming mode. Function name [Selection] In Programming mode (see 12.3 Operating modes on page 33), i.e. after a password has been entered (see siehe Passwords page 36 and 13.2 PASSWORD functional class page 42), the operator can navigate to the desired setting by using the key or the key and the operator can then confirm your selection by pressing (ENTER key). To retain the current setting, press Esc. Operating Manual UMF2 (B) Page 35 of 77

66 Input window / modify a value In the input window, the first line of the LCD always shows the heading, while the second line shows the current setting. Example: Function name -4,567 Unit These modifications can only be made in Programming mode (refer to 12.3Operating modes on page 33), which means that a correct password (see Passwords page 36 and 13.2 PASSWORD functional class page 42) must be entered. To move the cursor from one decimal place to the next, use the or keys. To increase the value of the decimal place just under the cursor by 1, use the key, and use key to lower the number by 1. To change the minus and plus sign, place the cursor in front of the first digit. To confirm and apply the change, press. To retain the current value, press Esc Passwords Programming mode is password protected. The customer password allows all changes to be made that are permissible for customers. This password can be changed when the device is first put into operation. Such changes should be kept in a safe place. The UMF2 (B) customer password in the device when delivered is The service password allows for modification of all UMF2 (B) functions. This password is not given to customers. For further information on customer passwords, see Section 13.2 PASSWORD functional class on page 42. Page 36 of 77 Operating Manual UMF2 (B)

67 13. UMF2 (B) transmitter functions The software functions of the UMC3 transmitter are divided into functional classes, are arrayed in a circle and can be navigated by using the or cursor keys. To go back to your starting point (the MEASURED VALUES functional class) press Esc. In the following, all software functions that can be accessed using the customer password are described. Functions that are only accessible to the vendor (service functions) are not described in the present document. Operating Manual UMF2 (B) Page 37 of 77

68 13.1 MEASURED VALUES functional class The MEASURED VALUES functional class contains all functions for displaying the measured values. Page 38 of 77 Operating Manual UMF2 (B)

69 Volume flow rate If you select the function volume flow, the following will be displayed (example): Volume flow l/h The LCD shows the current volume flow rate. You define the display unit in the functional class FLOW using the function volume flow unit" Forward flow counter 1 Forward flow counter 1 and forward flow counter 2 are independent counters that can also be reset separately. With counter 1, for example, you can measure the yearly or monthly volume. If you select the function forward flow counter 1, the following will be displayed (example): Counter 1 forw l The LCD shows the current value of forward flow counter 1. You define the display unit in the functional class COUNTERS using the function unit of counter Forward flow counter 2 The function is identical with the function of forward flow counter 1. For example, forward flow counter 2 can be used as a daily counter. If you select the function forward flow counter 2, the following will be displayed (example): Counter 2 forw l The LCD shows the current value of forward flow counter 2. You define the display unit in the functional class COUNTERS using the function unit of counter Reverse flow counter If you select the function reverse flow counter, the following will be displayed (example): Counter reverse l The LCD shows the current value of the reverse flow counter. You define the display unit in the functional class COUNTERS using the function unit of counter. Operating Manual UMF2 (B) Page 39 of 77

70 Flow velocity If you select the function flow velocity, the following will be displayed (example): flow velocity 1.5 m/s The LCD shows the current value of the mean flow velocity of the medium. The display unit is always meters per second (m/s). The mean velocity is calculated from the measured volume flow and the flow area of the meter tube. In order to calculate the flow area of the meter tube, enter the inside diameter of the meter tube. To do so, use the inside diameter function in the functional class SETTINGS SENSOR + UMF Relative flow rate The relative flow rate is the percentage ratio of the (current) volume flow and the entered upper range value of the volume flow. You set this upper range value in the functional class FLOW using the function volume flow QV URV. The calculation of the relative flow rate is based on the following formula: relative flow rate = 100% x (Qabs lower range limit) / (upper range limit lower range limit) If you select the function relative flow, the following will be displayed (example): Relative flow 95.3% QV + Forward flow counter If the function QV+ forward flow counter 1 is selected, in the first line the actual flow will be displayed: XXX.X l XXX.XX l/h In the second line the LCD shows the current value of the forward flow counter 1. The displayed unit is defined in the functional class FLOW using the function volume flow unit". The unit of the counter is defined in the functional class COUNTER using the function "counter unit" QV + Forward flow counter 2 If the function QV+ forward flow counter 2 is selected, in the first line the content of the actual flow will be displayed: XXX.X l XXX.XX l/h In the second line the LCD shows the current value of the forward flow counter 2.. The displayed unit is defined in the functional class FLOW using the function volume flow unit". The unit of the counter is defined in the functional class COUNTER using the function "counter unit". Page 40 of 77 Operating Manual UMF2 (B)

71 QV + flow velocity If the function QV + flow velocity is selected, the following will be displayed: XXX.X l/h XXX.X m/s The first line shows the actual volume flow rate and the second line the mean flow velocity of the medium. In der ersten Zeile der LCD-Anzeige wird der aktuelle Wert des Volumendurchflusses und in der zweiten Zeile die Fließgeschwindigkeit des Mediums angezeigt. The displayed volume flow unit is defined in the functional class FLOW using the function volume flow unit", the unit of the medium s velocity is always m/s Display mode during startup By choosing the Display mode during startup function the operator can define the default display. After the operator switched the device on and did not touch any keys for a longer period of time, the defined default display will be shown. Display mode [QV] According to the description in Section Selection window / make a selection, one of the following default displays can be selected. QV (volume flow rate), Counter 1 forward flow, Counter 2 forward flow, Counter reverse flow, Velocity, QVabs + QVrel, QV + counter 1, QV + counter 2, QV + velocity, and raw values Raw values The Raw value display supports fault diagnostics and trouble shooting. Please inform our service department about the clear text error messages and contens of the Raw value display. xxx.xxx ggooo iiii gguuu The displayed values are decimals and have the folling meaning: xxx.xxx: ggooo: iiii: gguuu: Is a gauge for the measured eletrode voltage. Is a gauge for the upper value of the reference calibration. Is a gauge for the current to generate the field coil s magnetic field. Is a gauge for the lower value of the reference calibration. Operating Manual UMF2 (B) Page 41 of 77

72 13.2 PASSWORD functional class The PASSWORD functional class is comprised of the functions for entering and changing the customer password and entering the service password. To cancel the current action, press Esc Customer-password After selecting the Customer password function and pressing, the following will be displayed: Password? 0000 According to the description in Section Input window / modify a value, the password can be changed. If the entered password is correct, the following message will be displayed: Password valid If the entered password is not correct, the following message will be displayed: Password invalid The customer password in the device when delivered is Page 42 of 77 Operating Manual UMF2 (B)

73 A valid customer password allows all software parameter changes to be made that are permissible for customers. After the operator switched the device off or did not touch any keys for about 15 minutes, the authorization to change settings related to password entry will automatically be canceled. If the operator does not enter a valid password, all settings can be displayed but not changed. Parameter changes via HART may be carried out any time without entering password Change customer password After entering a valid customer password, you may change the existing password and enter a new one. After selecting the Change customer password function and pressing, the following will be displayed. Enter New password 0000 According to the description in Section Input window / modify a value the current value can be changed. Press to confirm and save the new password. Make sure that you entered the desired password! A copy of the password should be kept in a safe place. Reactivation of a transmitter at the vendor s site due to a lost password is not part of our warranty! Service password You do not need the service password for setting the functions necessary for operation. The service password is reserved for service technicians and not provided to customers. Correct settings are essential for proper operation of the device (e.g. parameterization and calibration values). Operating Manual UMF2 (B) Page 43 of 77

74 13.3 Counter functional class The COUNTERS functional class is comprised of the following functions: To change the current settings, enter the customer password. Otherwise, the settings can only be displayed but not changed. To cancel the current action, press Esc. Page 44 of 77 Operating Manual UMF2 (B)

75 Unit of counters After choosing the Unit of counters function and pressing, the current forward and reverse counter unit will be displayed: Accumulation of: [kg] According to the description in Section Selection window / make a selection, one of the following units can be selected. Volume units: m³ and l, as well as USG, UKG, ft³ or Mass units: kg and t. When the unit is changed, the counters will be reset to 0.00 automatically. The mass unit only makes sense if density factor has been programmed for mass flow calculation. Press to confirm and save the selection. Forward and reverse counters will now show the selected unit Reset counter The transducer UMF2 (B) has 3 independent totalizing counters. Counter 1 and Couter 2 for forward flow and a reverse flow counter. Each of them can be reset individually on the initial value To reset one of the totalizing counters, you definitely need to toggle to [yes]. Reset counter [no] According to the description in Section Selection window / make a selection, yes or no can be selected. By pressing Esc or toggling to [no] the operator can cancel the current action without changing the counter readings. Operating Manual UMF2 (B) Page 45 of 77

76 13.4 MEASUREMENT PROCESSING functional class The MEASUREMENT PROCESSING functional class is comprised of all functions that affect the processing of the measured values. To change the current settings, enter the customer password. Otherwise, the settings can only be displayed but not changed. To cancel the current action, press Esc. Page 46 of 77 Operating Manual UMF2 (B)

77 Damping The damping value is intended to dampen abrupt flow rate changes or disturbances. It affects the measured value display and the current and pulse outputs. It can be set in intervals of 1 second from 1 to 60 seconds. After choosing the Damping value function and pressing, the following selection field will be displayed: Damping 03 s The current damping value will be displayed. According to the description in Section Input window / modify a value, the current value can be changed. After setting the new damping value, press to confirm your entry Low flow cut-off The value for low flow cut-off (low flow volume) is a limiting value stated as a percentage that relates to the upper-range value of the flow rate. If the volume drops below this value (e.g. leakage), the displayed value and the current outputs will be set to ZERO. The value for low flow cut-off can be set from 0 to 20 % in 1-percent increments. After choosing the Low flow cut-off function and pressing, the following selection field will be displayed: Low flow cut-off 00 % The low flow volume will be displayed. According to the description in Section Input window / modify a value, the current value can be changed. After setting the new low flow volume, you confirm your entry with Low flow cut-off hysteresis The hysteresis of the low flow volume is the flow rate expressed as a percentage of the upper range value by which the volume must fall below or surpass the set low flow volume in order to activate or deactivate the function. The hysteresis of the low flow volume can be set in 1-percent increments from 0 to 10 %. After selecting the Low flow cut-off hysteresis function and pressing, the following selection field will be displayed: Low flow cut-off hysteresis 00 % The current hysteresis will be displayed. According to the description in Section Input window / modify a value, the current value can be changed. After setting the new hysteresis value, you confirm your entry with. Operating Manual UMF2 (B) Page 47 of 77

78 Zero point calibration Using the Zero point calibration function the operator can recalibrate the zero point of your meter in the measuring system. Zero point calibration is to be realized after any installation procedure or after any type of work has been performed on in the pipes near the sensor. Refer also Section 3.4 Zero point calibration auf Seite 13. CAUTION: This function may only be carried out if it is certain that the fluid in the sensor is not flowing. Otherwise, the flow rates measured subsequently will be incorrect. The sensor must be completely filled with fluid. A partially filled sensor or air bubbles will lead to an incorrect zero point calibration. After choosing the Zero point calibration function and pressing, the current remaining flow will be displayed: 0.00 l/h cal.? [no] According to the description in Section Selection window / make a selection, yes or no can be selected. By pressing Esc or toggling to [no] the operator can cancel the current action. Enter [yes] to have the zero point recalibrated Filter For a noise reduction of the actual readings a signal filter can be used. Following settings are available: none weak mid (standard factory setting) strong Selecting weak or mid influences the dynamics of the actual readings not or just very less. The setting of damping time (see section Damping at page 47 above) determines the dynamic behaviour of sensor and transmitter. Filter strong operates as an intense low pass filter to reduce the noise of the actual readings. Then if setting the damping time shorter than 3 seconds, the low pass filter determines the dynamic behavior to actual reading s variations. According to the description in Section Selection window / make a selection, noise filter type can be selected. Page 48 of 77 Operating Manual UMF2 (B)

79 13.5 Flow functional class The FLOW functional class is comprised of functions that affect lower- and upper-range values and the processing of the measured flow rates. In Programming mode (see 12.3 Operating modes), i.e. after a password has been entered (see Passwords, 13.2 PASSWORD functional class), the operator can change the settings regarding flow. To change the current settings, enter the customer password. Otherwise, the settings can only be displayed but not changed. To cancel the current action, press Esc. Operating Manual UMF2 (B) Page 49 of 77

80 Volume flow QV unit Using this function, the operator can define the physical unit for all display functions, limit values and the upper-range value of volume flow. After choosing the Volume flow QV unit function and pressing, the following selection field will be displayed: Volume flow QV in [l/h] According to the description in Section Selection window / make a selection, one of the following units can be selected: l/h, l/min, l/s m³/h, m³/min, m³/s USG/h, USG/min, USG/s, UKG/h, UKG/min, UKG/s, Kg/h, t/h, ft³/s, MGD (Mega US Gallons / day). Press to confirm and save the selection Volume flow lower-range value This function allows the operator to set the lower-range value for volume flow. The lower-range value takes on the unit defined using the Volume flow unit function. The lower-range value will scale the current and frequency outputs assigned to volume flow. After choosing the Volume flow lower-range value function and pressing, the following selection field will be displayed: QV LRV = 0% XXXXX.XX l/h The current lower-range value for volume flow will be displayed. According to the description in Section Input window / modify a value, the current value can be changed Volume flow upper-range value This function allows the operator to set the upper-range value for volume flow. The upper-range value takes on the unit defined using the Volume flow unit function. The upper-range value will scale the current and frequency outputs assigned to volume flow. After choosing the Volume flow upper-range value function and pressing, the following selection field will be displayed: QV URV = 0% XXXXX.XX l/h The current upper-range value for volume flow will be displayed. According to the description in Section Input window / modify a value, the current value can be changed. Page 50 of 77 Operating Manual UMF2 (B)

81 Volume flow limit MIN The MIN limiting value for volume flow can be evaluated via the status output. You enter the value as a percentage of the set upper-range value. If the volume flow is lower than that limit value, the status output will be set in case the corresponding assignment has been made. If the alarm function has also been activated for the current output, the applied current will change to < 3.2 ma or > 20.5 ma / 22 ma. After choosing the Volume flow limit MIN function and pressing, the following selection field will be displayed: Volume flow limit MIN = 10 % The current MIN upper-range value for volume flow will be displayed. According to the description in Section Input window / modify a value, the current value can be changed Volume flow limit MAX The MAX limiting value for volume flow can be evaluated via the status output. You enter the value as a percentage of the set upper-range value. If the volume flow surpasses this limit value, the status output will be set in case the corresponding assignment has been made. If the alarm function has also been activated for the current output, the applied current will change to < 3.2 ma or > 20.5 ma / 22 ma. After choosing the Volume flow limit MAX function and pressing, the following selection field will be displayed: Volume flow limit MAX = 90 % The current MAX upper-range value for volume flow will be displayed. According to the description in Section Input window / modify a value, the current value can be changed QV limit hysteresis The hysteresis of the QV limiting values is the flow rate in percent based on the upper-range value and indicates the value which must fall below or surpass the set limiting values in order to activate or deactivate the function. The hysteresis of the QV limiting values can be set in 1-percent increments from 0 to 10 %. After choosing the QV limit hysteresis function and pressing, the following selection field will be displayed: QV limit Hysteresis 00 % The current hysteresis value will be displayed. According to the description in Section Input window / modify a value, the current value can be changed. Operating Manual UMF2 (B) Page 51 of 77

82 Density If a mass unit in kg or t is used as flow unit ( Volume flow QV unit), the density of the medium must be entered in the unit of g/l. Using the entered density value, the mass flow is calculated from the volume flow measurement. After choosing the Density function and pressing, the following selection field will be displayed: Density g/l The current density value will be displayed. According to the description in Section Input window / modify a value, the current value can be changed. The value of the density is not measured. It is a parameter Volume flow LSL (information field) This value represents the minimum lower range value based on the inside diameter of the sensor. This value is normally set for a flow velocity of 0.25 m/s. QV LSL XX.XXX l/h Volume flow USL (information field) This value represents the maximum upper range value based on the inside diameter of the sensor. This value is normally set for a flow velocity of 11 m/s. QV USL XX.XXX l/h Page 52 of 77 Operating Manual UMF2 (B)

83 13.6 PULSE OUTPUT functional class The PULSE OUTPUT functional class is comprised of the functions regarding the pulse output. Operating Manual UMF2 (B) Page 53 of 77

84 Pulse or frequency output The Pulse or frequency output function allows the operator to define whether pulses per represent a unit of flow or a frequency between 0 and 1 khz that represents an analog output over the measuring range. After selecting the frequency setting, the maximum frequency of 1 khz will be generated when the upperrange value for mass or volume flow is reached (depending on the selected pulse unit). If the flow rate falls below the low flow volume, the actual frequency is 0 Hz. After selecting the pulse setting, pulse value and unit the transmitter will determine the number of pulses per flow volume. When choosing a combination of these settings that cannot be fulfilled in real time for the upper-range value (e.g. the number of pulses per time unit cannot be generated due to the pulse width which is too large), the error message Pulse width too large or Inconsistent parameter will be displayed. Press to display the current setting: Output of [Pulses] According to the description in Section Selection window / make a selection, the operator can toggle between frequency and pulse output (default setting) Pulse output unit This function allows the operator to define the unit to be counted. After selecting the Pulse output unit function, press to display the following selection field: Accumulation of 1.0 l The current value will be displayed. As mentioned in Section Selection window / make a selection, the operator can choose between the following units: Mass units: o kg, t Volume units: o m³, l, USG, UKG, ft³. Page 54 of 77 Operating Manual UMF2 (B)

85 Pulse value This function allows the operator to define how many pulses will be output per unit counted. After selecting the Pulse value function, press to display the current unit: 1 pulse per [1.0] unit As mentioned in Section Selection window / make a selection, the operator can choose between the following pulse values: Values: 0.001, 0.01, 0.1, 1.0, 10.0, Pulse width This function allows the operator to change the width of the output pulse to be output. If the pulse width is too large for the actual pulse number, it will be reduced automatically. In this case the warning Pulse output saturated will be displayed. After selecting the Pulse width function, press to display the following selection field: Pulse width ms The current pulse width will be displayed. As mentioned in Section Input window / modify a value, the operator can change the current value. The maximum output frequency can be calculated from the following formula: f 1 Hz 2* pulse width[ ms] 1000 If connecting to electrical counter relays, we recommend pulse widths greater than 4 ms; for electromechanical counter relays the preset value should be 50 ms. Operating Manual UMF2 (B) Page 55 of 77

86 13.7 STATUS OUTPUT functional class The functional class OUTPUT is comprised of the functions for setting the status output Status output active state The status output can be compared to an electrical relay that can function as make or break contact. For safety-relevant applications, the operator will choose the break contact setting so that a power failure or failure of the electronics can be detected like an alarm. In standard applications, the output is used as make contact. The Status output state active state function allows the operator to define the behavior of the status output. Output active [closed] As mentioned in Section Selection window / make a selection, the operator can choose between the following settings: closed open. Page 56 of 77 Operating Manual UMF2 (B)

87 Status output assignment This function allows the operator to define to which event the status output is to be assigned. The most general assignment is the reverse flow assignment. After selecting the Status output assignment function, press to display the current assignment. Output assigned to [Reverse flow] As mentioned in Section Selection window / make a selection, the operator can choose between the following settings: Flow direction recognition o Forward flow o Reverse flow Limiting values: o MIN QV o MAX QV All limiting values and error detection o Alarm. Operating Manual UMF2 (B) Page 57 of 77

88 13.8 CURRENT OUTPUT functional class The CURRENT OUTPUT functional class allows the operator to perform the settings for the current outputs of the transmitter. The current aoutput is always assigned to volume flow Current output 0/4-20 ma The Current output 0/4 to 20 ma function allows the operator to define the range in which the current output is to be operated. Within the range from 0 to 21.6 ma (= %) HART communication is not possible. The range from 4 to 20.5 ma follows the NAMUR recommendation and covers the range from 0 to 104 % of the measuring range. The standard range from 4 to 21.6 ma allows for a control of the measuring range of up to 110 %. Press to display the current setting. Current output I1 [4] 21.6 ma As mentioned in Section Selection window / make a selection, the operator can choose between the following settings: ma ma ma Page 58 of 77 Operating Manual UMF2 (B)